Metal clip PIN structure for LCD electrical test

Abstract

The utility model discloses a metal clip PIN structure for LCD electrical test, which comprises an LCD module, a first LCD metal clip PIN and a second LCD metal clip PIN are respectively arranged at the top and the bottom of the LCD module, a switching PCB (printed circuit board) is arranged on one side of the LCD module in parallel, and conductive grooves are arranged on the switching PCB at positions corresponding to the first LCD metal clip PIN and the second LCD metal clip PIN. According to the metal clip PIN structure for the LCD electrical test, the conductive grooves are formed in the switching PCB, and the conductive foam is laid in the conductive grooves, so that after the first LCD metal clip PIN and the second LCD metal clip PIN on the LCD module are arranged in the corresponding conductive grooves, the conductive foam has flexibility and viscidity, and the first LCD metal clip PIN and the second LCD metal clip PIN on the LCD module can be fixed through the conductive foam. And the tail end of the metal clamp PIN can be fully contacted with the conductive foam through the expansion and contraction amount of the conductive foam, so that the connection between the LCD module and the switching PCB as well as between the LCD module and the driving mainboard can be indirectly realized through the conductive foam.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid crystal screen technical field especially relates to a metal clamp PIN structure for LCD electricity test. BACKGROUND

[0002] Liquid crystal screen is with liquid crystal material as basic component, fills liquid crystal material between two parallel boards, changes the arrangement of liquid crystal material inner particle through voltage to reach the purpose of light shielding and light transmission to show the image of different depth and well-proportioned, and just adds the filter layer of ternary color between two parallel boards, can realize display color image. Liquid crystal screen power consumption is very low.

[0003] The conventional liquid crystal display screen, its connection mode is metal clamp PIN connection, and LCD both sides have metal clamp PIN, the LCD of this kind of design is difficult to carry out electricity measurement operation in actual production process, if the contact of the needle with the metal PIN is used with the mouth of the needle, the needle is easy to be pressed and the metal clamp PIN is deformed, if the metal clamp PIN is inserted into the metal hole of PCB, because the LCD both sides have metal clamp PIN, and the number of metal clamp PIN is more, need to guarantee that each metal clamp PIN is in contact with the metal hole completely, lead to the operation difficulty is bigger, the efficiency is lower, therefore put forward a kind of metal clamp PIN structure for LCD electricity test. UTILITY MODEL CONTENT

[0004] Based on this, it is necessary to provide a metal clamp PIN structure for LCD electricity test, by the design of adapter PCB, the elasticity and viscosity of conductive foam can avoid the problem of poor contact between LCD and PCB caused by the length difference of metal clamp PIN.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A metal clamp PIN structure for LCD electricity test, including LCD module, first LCD metal clamp PIN and second LCD metal clamp PIN are installed at the top and bottom of the LCD module respectively, a side of the LCD module is provided with adapter PCB in parallel, the adapter PCB is provided with conductive groove at the position corresponding to the first LCD metal clamp PIN and the second LCD metal clamp PIN.

[0007] Wherein, the conductive foam is laid in the conductive groove, the adapter PCB is connected with the drive mainboard through adapter, the first LCD metal clamp PIN and the second LCD metal clamp PIN are inserted into the conductive foam in the conductive groove to realize the connection between the LCD module and the drive mainboard.

[0008] Further, the conductive foam has a sticky layer on both sides, the conductive foam is connected with the conductive groove side wall through the sticky layer on one side, and the other sticky layer is used for contacting the first LCD metal clamp PIN or the second LCD metal clamp PIN.

[0009] Further, the conductive groove has two groups, and the two groups of the conductive groove are respectively designed according to positions of the first LCD metal clamp PIN and the second LCD metal clamp PIN.

[0010] Further, the adapter PCB board has a metal hole in the bottom;

[0011] The metal hole is electrically connected with the conductive groove through internal wire arrangement of the adapter PCB board.

[0012] Further, the adapter includes a connection board electrically connected with the driving main board and a connection column distributed on the surface of the connection board.

[0013] The connection column corresponds to the position of the metal hole.

[0014] Further, the outer diameter of the connection column is matched with the inner diameter of the metal hole, and the connection column is inserted into the metal hole to realize the connection of the adapter PCB board and the driving main board.

[0015] Further, the end of the connection column has a circular arc spherical surface.

[0016] Further, the surface of the connection column is provided with a groove, one side wall of the groove is connected with a metal spring, and the tail end of the metal spring is opened in a range greater than the inner diameter of the metal hole in a natural state.

[0017] Further, the thickness of the conductive foam is less than the depth of the conductive groove.

[0018] Further, the LCD module includes upper glass and lower glass arranged in adhesion, the outer side of the upper glass is attached with an upper polarizer, and the outer side of the lower glass is attached with a lower polarizer.

[0019] The first LCD metal clamp PIN and the second LCD metal clamp PIN are respectively installed on the top and the bottom of the lower glass.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The metal clamp PIN structure for LCD electric testing provided by the utility model has the conductive recesses on the adapter PCB and the conductive foam laid in the recesses, so that after the first LCD metal clamp PIN and the second LCD metal clamp PIN on the LCD module are placed in the corresponding conductive recesses, the tail end of the metal clamp PIN can be in full contact with the conductive foam through the elasticity and viscosity of the conductive foam, and the LCD module can be indirectly connected with the adapter PCB and the driving mainboard through the conductive foam.

[0022] Meanwhile, since the first LCD metal clamp PIN and the second LCD metal clamp PIN are contacted through the conductive foam when being connected, the pressure acting on the first LCD metal clamp PIN and the second LCD metal clamp PIN is small, so that the first LCD metal clamp PIN and the second LCD metal clamp PIN are not easy to be extruded, deformed or damaged during the connection. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0024] Figure 2 The front view structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0025] Figure 3 The adapter PCB structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0026] Figure 4 The LCD module structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0027] Figure 5 The conductive foam structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0028] Figure 6 The adapter PCB side view structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0029] Figure 7 The Figure 1 The enlarged structure schematic view of the metal clamp PIN structure for LCD electric testing provided by the utility model is shown in the figure.

[0030] The figure mark is explained as follows:

[0031] LCD module 1, upper glass 11, lower glass 12, upper polaroid 13, lower polaroid 14;

[0032] First LCD metal clip PIN2;

[0033] Second LCD metal clip PIN3;

[0034] Conductive groove 4;

[0035] Conductive foam 5, adhesive layer 51;

[0036] Adapter 6, on-plate 61, on-column 62, circular arc spherical surface 63, groove 64, metal spring 65

[0037] Drive mainboard 7;

[0038] Adapter PCB board 8, metal hole 81. DETAILED DESCRIPTION

[0039] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0040] As described in the background, the connection mode of the conventional liquid crystal display screen is metal clip PIN connection, and there are metal clip PINs on both sides of the LCD. Such design of LCD is not easy to operate in electrical measurement in the actual production process.

[0041] In order to solve this technical problem, the present application provides a metal clip PIN structure for LCD electrical testing, which is applied to a liquid crystal display screen.

[0042] Specifically, please refer to Figures 1-7 As shown in the figure, the metal clip PIN structure for LCD electrical testing specifically comprises an LCD module 1, a first LCD metal clip PIN 2 and a second LCD metal clip PIN 3 are respectively installed on the top and bottom of the LCD module 1, a side of the LCD module 1 is provided with a parallel adapter PCB board 8, and the adapter PCB board 8 has a conductive groove 4 at a position corresponding to the first LCD metal clip PIN 2 and the second LCD metal clip PIN 3.

[0043] Among them, the conductive groove 4 is paved with conductive foam 5, the adapter PCB board 8 is connected with the drive mainboard 7 through the adapter 6, and the first LCD metal clip PIN 2 and the second LCD metal clip PIN 3 are inserted into the conductive groove 4 and contacted with the conductive foam 5 to realize the connection of the LCD module 1 and the drive mainboard 7.

[0044] The metal clamp PIN structure for LCD electric testing has the conductive recess 4 on the adapter PCB 8 and the conductive foam 5 laid in the conductive recess 4, so that after the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3 on the LCD module 1 are placed into the corresponding conductive recess 4, the tail end of the metal clamp PIN can be in full contact with the conductive foam 5 through the elasticity and viscosity of the conductive foam 5, and then the LCD module 1 can be connected with the adapter PCB 8 and the driving mainboard 7 through the conductive foam 5, and since the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3 are contacted through the conductive foam 5 when being connected, the pressure acting on the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3 is small, and the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3 are not easy to be extruded, deformed and damaged during the connection.

[0045] In order for those skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0046] It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0047] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0048] Embodiment one

[0049] Please refer to Figures 1-7 A metal clamp PIN structure for LCD electric testing, comprising an LCD module 1, a first LCD metal clamp PIN 2 and a second LCD metal clamp PIN 3 are respectively installed on the top and bottom of the LCD module 1, a parallel adapter PCB 8 is arranged on one side of the LCD module 1, and the adapter PCB 8 has a conductive recess 4 at positions corresponding to the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3.

[0050] The conductive recess 4 is filled with conductive foam 5, the adapter PCB 8 is connected with a driving mainboard 7 through an adapter 6, and the first LCD metal clamp PIN 2 and the second LCD metal clamp PIN 3 are inserted into the conductive recess 4 to contact the conductive foam 5, so as to realize the connection between the LCD module 1 and the driving mainboard 7.

[0051] The conductive foam 5 has a sticky layer 51 on both sides, the conductive foam 5 is connected with the side wall of the conductive groove 4 through the sticky layer 51 on one side, and the other sticky layer 51 is used to contact the first LCD metal clip PIN2 or the second LCD metal clip PIN3 corresponding to the outside, and the thickness of the conductive foam 5 is less than the depth of the conductive groove 4.

[0052] The conductive groove 4 has two groups, and the two groups of the conductive groove 4 are respectively designed to correspond to the positions of the first LCD metal clip PIN2 and the second LCD metal clip PIN3.

[0053] In actual application, the tail end of the first LCD metal clip PIN2 and the second LCD metal clip PIN3 on the LCD module 1 is respectively inserted into the corresponding conductive groove 4, and after insertion, the tail end of the first LCD metal clip PIN2 and the second LCD metal clip PIN3 will contact the conductive foam 5 laid in the corresponding conductive groove 4. Because the conductive foam 5 itself has a certain elasticity, it can deform to a certain extent, so that after pressing the LCD module 1 towards the adapter PCB 8, the PIN can be extruded to the conductive foam 5 to make it fully contact, so as to avoid the problem that the difference in length of the PIN leads to poor contact between the LCD module 1 and the adapter PCB 8.

[0054] At the same time, in the process that the first LCD metal clip PIN2 and the second LCD metal clip PIN3 contact the corresponding conductive foam 5, the conductive foam 5 can form a paste with the surface of the PIN contacted through its own sticky layer 51, thereby stabilizing the first LCD metal clip PIN2 and the second LCD metal clip PIN3 after insertion, and being conducive to the electrical measurement of the LCD module 1. Because the conductive foam 5 itself is relatively soft and elastic, the first LCD metal clip PIN2 and the second LCD metal clip PIN3 are not easy to twist and deform when directly resisting the conductive foam 5.

[0055] The bottom of the adapter PCB 8 has a metal hole 81, wherein the metal hole 81 is electrically connected with the conductive groove 4 through the internal wire of the adapter PCB 8.

[0056] Embodiment two

[0057] The metal clip PIN structure for LCD electrical test provided in embodiment one is further optimized, specifically, as shown in Figure 1 and Figure 7 The adapter 6 includes an on-off board 61 electrically connected with the driving main board 7 and an on-off column 62 distributed on the surface of the on-off board 61, wherein the on-off column 62 corresponds to the position of the metal hole 81.

[0058] The outer diameter of the connecting post 62 is adapted to the inner diameter of the metal hole 81. Inserting the connecting post 62 into the metal hole 81 can realize the connection between the adapter PCB board 8 and the driving motherboard 7. In Embodiment 1, after the first LCD metal clip PIN2 and the second LCD metal clip PIN3 in the LCD module 1 are connected to the adapter PCB board 8 through the conductive foam 5, the metal hole 81 on the adapter PCB board 8 can be aligned with the surface of the connecting post 62 on the connecting board 61, so that the connecting post 62 is inserted into the corresponding metal hole 81, further completing the connection between the adapter PCB board 8 and the driving motherboard 7, so as to perform electrical testing operation on the LCD module 1.

[0059] In practical applications, the metal hole 81 on the adapter PCB board 8 can be connected to the contact post 62 on the surface of the corresponding drive motherboard 7 first, and then the first LCD metal clip PIN2 and the second LCD metal clip PIN3 on the LCD module 1 can be connected to the conductive foam 5 on the surface of the adapter PCB board 8. The specific operation can be designed according to the actual application.

[0060] In this embodiment, regarding the insertion and engagement of the metal hole 81 and the connecting post 62 used in the adapter 6, in actual use, the adapter 6 can also be replaced with a BTB connector or a board-to-board connector or other components that can connect the adapter PCB board 8 and the driving motherboard 7.

[0061] Example 3

[0062] The metal clip PIN structure for LCD electrical testing provided in Embodiment 1 or 2 is further optimized, such as... Figure 7 As shown, the end of the connecting post 62 has an arc spherical surface 63. The design of the arc spherical surface 63 can play a transitional guiding role when the connecting post 62 on the drive motherboard 7 is aligned with the metal hole 81, which is more conducive to the alignment and connection of the connecting post 62.

[0063] The surface of the connecting post 62 is provided with a groove 64, and a metal spring 65 is connected to one side wall of the groove 64. In its natural state, the opening range of the tail end of the metal spring 65 is larger than the inner diameter of the metal hole 81. Figure 7 As shown, the raised end of the metal spring 65 corresponds to the outer end of the metal hole 81. Therefore, when the connecting post 62 on the connecting plate 61 is inserted into the metal hole 81 on the right side of the adapter PCB board 8, the metal spring 65 will undergo elastic deformation due to the resistance of the metal hole 81 during the insertion process, and gradually retract towards the groove 64. Finally, when the metal spring 65 retracts into the groove 64, the connecting post 62 can pass through the metal hole 81. At this time, since the metal spring 65 is not subjected to the resistance force, it will unfold and reset, thereby ensuring that the adapter PCB board 8 will not separate from the driver motherboard 7 after the connecting post 62 is inserted and connected.

[0064] When the LCD module 1 needs to be electrically tested again, the LCD module 1 in the electrically testing state and the first and second LCD metal clips PIN2 and PIN3 in the conductive groove 4 can be removed, and the adapter PCB 8 does not need to be separated from the driving mainboard 7.

[0065] Embodiment Four

[0066] The metal clip PIN structure for the LCD electric testing provided in Embodiment Three is further optimized, as shown in the following table. Figure 1 As shown in the table, the LCD module 1 includes upper and lower glass sheets 11 and 12 arranged in close contact with each other, and an upper polarizer 13 attached to the outer side of the upper glass sheet 11 and a lower polarizer 14 attached to the outer side of the lower glass sheet 12.

[0067] The first and second LCD metal clips PIN2 and PIN3 are respectively installed on the top and bottom of the lower glass sheet 12.

[0068] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] Obviously, the above-described embodiments are only some embodiments of the present application, not all embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some technical features. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A metal clip PIN structure for LCD electrical testing, comprising an LCD module (1), a first LCD metal clip PIN (2) and a second LCD metal clip PIN (3) are respectively installed on the top and bottom of the LCD module (1), characterized in that, One side of the LCD module (1) is provided with a parallel adapter PCB (8), the adapter PCB (8) is provided with a conductive groove (4) corresponding to the position of the first LCD metal clamp PIN (2) and the second LCD metal clamp PIN (3). Wherein, the conductive groove (4) is paved with conductive foam (5), the adapter PCB (8) is connected with the driving mainboard (7) through the adapter (6), the first LCD metal clamp PIN (2) and the second LCD metal clamp PIN (3) are inserted into the conductive groove (4) and contacted with the conductive foam (5) to realize the connection of the LCD module (1) and the driving mainboard (7).

2. The metal clip PIN structure for LCD electrical testing according to claim 1, wherein, The conductive foam (5) is provided with a sticky layer (51) on both sides, the conductive foam (5) is connected with the side wall of the conductive groove (4) through the sticky layer (51) on one side, and the other sticky layer (51) is used to contact with the corresponding first LCD metal clamp PIN (2) or second LCD metal clamp PIN (3) outside.

3. The metal clip PIN structure for LCD electrical testing of claim 1, wherein, The conductive groove (4) has two groups, and the two groups of conductive grooves (4) are respectively designed corresponding to the positions of the first LCD metal clamp PIN (2) and the second LCD metal clamp PIN (3).

4. The metal clip PIN structure for LCD electrical testing of claim 1, wherein, The bottom of the adapter PCB (8) is provided with a metal hole (81). Wherein, the metal hole (81) is electrically connected with the conductive groove (4) through the internal wire arrangement of the adapter PCB (8).

5. The metal clip PIN structure for LCD electrical testing of claim 4, wherein, The adapter (6) includes a connection plate (61) electrically connected with the driving mainboard (7) and a connection column (62) distributed on the surface of the connection plate (61). Wherein, the connection column (62) corresponds to the position of the metal hole (81).

6. The metal clip PIN structure for LCD electrical testing of claim 5, wherein, The outer diameter of the connection column (62) is matched with the inner diameter of the metal hole (81), and the connection column (62) is inserted into the metal hole (81) to realize the connection of the adapter PCB (8) and the driving mainboard (7).

7. The metal clip PIN structure for LCD electrical testing of claim 5, wherein, The end of the connection column (62) is provided with a circular arc spherical surface (63).

8. The metal clip PIN structure for LCD electrical testing of claim 5, wherein, The surface of the connection column (62) is provided with a groove (64), one side wall of the groove (64) is connected with a metal spring (65), and the tail end of the metal spring (65) in the natural state is opened wider than the inner diameter of the metal hole (81).

9. The metal clip PIN structure for LCD electrical testing of claim 1, wherein, The thickness of the conductive foam (5) is less than the depth of the conductive groove (4).

10. The metal clip PIN structure for LCD electrical testing of claim 1, wherein, The LCD module (1) comprises upper glass (11) and lower glass (12) arranged in close contact, the outer side of the upper glass (11) is attached with an upper polarizer (13), and the outer side of the lower glass (12) is attached with a lower polarizer (14). Wherein, the first LCD metal clamp PIN (2) and the second LCD metal clamp PIN (3) are respectively installed on the top and bottom of the lower glass (12).

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